CN216323343U

CN216323343U - Grain purifying device

Info

Publication number: CN216323343U
Application number: CN202122767814.6U
Authority: CN
Inventors: 成宇; 张晓亚; 宁有才; 傅玉凯; 王志; 王鑫
Original assignee: Zhengzhou Jingu Grain Mechanical Engineering Equipment Co ltd
Current assignee: Zhengzhou Jingu Grain Mechanical Engineering Equipment Co ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-04-19
Anticipated expiration: 2031-11-12

Abstract

The utility model discloses a grain purifying device, which comprises a shell; the feeder is provided with a feeding part, a material receiving part communicated with the first feeding hole and a discharging part communicated with the inner cavity of the shell; the feeding adjusting assembly is arranged in the shell close to the corresponding position of the discharging part, and a second feeding hole with adjustable size is formed by the feeding adjusting assembly and the side wall of the shell in a surrounding manner; and the impurity removal system comprises an air supply assembly and an air draft assembly, the light impurities are blown upwards by air provided by the air supply assembly, and the light impurities on the upper part of the shell are extracted out by the air outlet assembly. The utility model utilizes the winnowing principle and combines the gravity of the grain, the grain freely falls under the action of the gravity in the impurity removal process, the wind source enters from the lower part of the shell to blow up light impurities in the grain, the negative pressure provided by the air draft assembly draws the light impurities (such as dust and wheat bran) blown to the upper part of the shell out of the shell, and the grain falls down by the gravity from top to bottom in the process, thereby realizing the impurity removal of the grain.

Description

Grain purifying device

Technical Field

The utility model relates to the field of grain impurity removal, in particular to a grain purifying device.

Background

Grain crops such as corn, wheat and soybean are raw materials of processing enterprises such as starch, sugar, ethanol and flour, a large amount of impurities are doped in the raw materials during harvesting, the impurities influence the receiving, storage and delivery of the raw materials to the synchronous degree, for example, the impurities in the grains cause a large amount of dust when the grains enter and leave the grain warehouse, so that the grains cannot meet the environmental protection requirement during the operation of entering the grain warehouse, and the impurities cause the grains to be heated, mildewed and deteriorated after entering the grain warehouse. Therefore, before the grains are put in storage, the grains are usually subjected to impurity removal treatment in an enterprise.

At present, common grain purification equipment mainly comprises a vibrating screen, a drum screen and the like. In actual operation, grains contain more light impurities, so that sieve pores are easy to block, and normal operation and treatment capacity of a vibrating sieve or a rotary screen are influenced; in addition, the vibrating screen and the drum screen have poor purification effect, and a large amount of dust still accompanies grains in and out of the warehouse, so that the method does not meet the national environmental protection requirement. Therefore, how to design a grain purifying device which has good impurity removing effect and effectively ensures the working environment of entering and warehousing is an important problem to be solved urgently in the industry.

Disclosure of Invention

In view of this, the utility model provides a grain cleaning device, which can effectively remove dust, wheat bran and other light impurities in grains, improve the impurity removal rate of the grains, reduce the breakage rate of the grains and ensure the quality.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the grain cleaning device comprises

The upper part of the shell is provided with a first feeding hole;

the feeder is arranged on the shell and is provided with a feeding part, a material receiving part communicated with the first feeding hole and a discharging part communicated with the inner cavity of the shell;

the feeding adjusting assembly is arranged in the shell close to the corresponding position of the discharging part, and a second feeding hole with adjustable size is formed by the feeding adjusting assembly and the side wall of the shell in a surrounding manner; and

the impurity removing system comprises an air supply assembly communicated with an air inlet at the lower part of the shell and an air exhaust assembly communicated with an air outlet at the upper part of the shell, wherein the light impurities are blown upwards by air provided by the air supply assembly, and the light impurities at the upper part of the shell are extracted out by the air exhaust assembly.

In a preferred embodiment of the present invention, the feed adjusting assembly includes an adjusting plate and an adjusting member, the adjusting plate is disposed in the housing, an upper portion of the adjusting plate is hinged to a side wall of the housing, and the adjusting plate is disposed to be inclined from an upper portion thereof toward the second feed opening; one end of the adjusting piece is hinged to the lower portion of the adjusting plate, and the adjusting piece pushes the adjusting plate to rotate in the shell to adjust the size of the second feed inlet, so that the feeding amount of grains is adjusted.

In a preferred embodiment of the present invention, the adjusting member is an adjusting screw, an air cylinder, a hydraulic cylinder or an electric push rod horizontally arranged in the housing. More preferably, the adjustment member selects an adjustment screw.

In a preferred embodiment of the present invention, a grain dispersing assembly is disposed in the housing below the feeding adjustment assembly, and the grain dispersing assembly includes tube plates symmetrically disposed in the housing and a plurality of rows of rotating members horizontally disposed between the tube plates. More preferably, the rotating member is a horizontally disposed steel tube. In the impurity removal process, grains fall on each layer of steel pipe layer by layer, the steel pipes rotate along with the steel pipes due to the acceleration of the grains, the grains fall smoothly, the impact force when the grains fall is reduced, and the crushing probability of the grains is further reduced; the grains fall layer by layer to fully disperse the grains, the wind area of the grains is effectively ensured, light impurities in the grains are blown upwards to the maximum extent, and the impurity removal rate of the grains is improved.

In a preferred embodiment of the utility model, the lower part of the shell is provided with a discharging adjusting component or a discharger for adjusting the discharging amount of the grains, so that the buffer effect is achieved, the impact of the grains is reduced, and the air loss can be reduced.

In a preferred embodiment of the utility model, the discharge adjustment assembly comprises a first slide carriage which is obliquely arranged and the top of which is fixedly connected in the shell; the second slide carriage is obliquely arranged, the top of the second slide carriage is fixedly connected to the inner side of the shell, and the first slide carriage and the second slide carriage enclose a feeding hole which is gradually contracted downwards; and the gravity door is rotatably arranged at the feed opening through the connecting unit, is in a vertical state under the action of gravity, and is pushed open by the grain when the grain is discharged.

In a preferred embodiment of the present invention, the connection unit includes a mounting shaft rotatably connected to the housing through a bearing, and the upper portion of the gravity gate is fixedly connected to one end of the mounting shaft.

In a preferred embodiment of the present invention, the discharging adjustment assembly further includes a counterweight unit, the counterweight unit includes a counterweight lever horizontally disposed in the housing and a counterweight block sleeved on the counterweight lever, and the bearing is fixedly connected to the counterweight lever. During actual work, the counterweight block and the counterweight lever balance the gravity door to ensure the normal work of the gravity door.

In a preferred embodiment of the present invention, the air outlet is disposed on another side wall of the housing opposite to the feeder; the air suction component is a dust remover with a fan, and an air suction port of the dust remover is fixedly connected to the air outlet to suck light impurities in the shell; the air inlet is arranged below the air outlet, and the air supply assembly is communicated with the air outlet. The wind direction in the shell is from bottom to top, impurities in the grains are blown upwards in the falling process of the grains and then are discharged from the air outlet in the upper part of the shell, and the impurity removal of the grains is realized.

In a preferred embodiment of the present invention, at least one access door is provided on a side wall of the housing, and at least one observation window is provided on a side wall of the housing.

By adopting the technical scheme, the beneficial effects are as follows:

the utility model utilizes the winnowing principle and combines the gravity of the grain, the grain freely falls under the action of the gravity in the impurity removal process, the wind source enters from the lower part of the shell to blow up light impurities in the grain, the negative pressure provided by the air draft assembly draws the light impurities (such as dust and wheat bran) blown to the upper part of the shell out of the shell, and the grain falls down by the gravity from top to bottom in the process, thereby realizing the impurity removal of the grain.

According to the utility model, the feeder is arranged between the first feed port and the second feed port, and the feeder is used for feeding materials into the shell, so that the feeding quantity can be effectively controlled, the acceleration of grains can be reduced to a certain extent, and the grains are effectively prevented from being crushed due to overlarge acceleration in the falling process.

The rotating parts are arranged in the shell, are in multiple layers, and are arranged in a staggered mode in two adjacent layers, so that grains are fully dispersed in the falling process, the wind area of the grains is effectively guaranteed, light impurities in the grains are blown upwards to the maximum extent, and the impurity removal rate of the grains is improved.

According to the utility model, the discharging adjusting component or the discharger is arranged at the discharging opening at the lower part of the shell, so that the buffering effect is achieved, the acceleration of grains is reduced, the air leakage area can be reduced, and the air volume loss is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly described below. Wherein the drawings are only for purposes of illustrating some embodiments of the utility model and are not to be construed as limiting all embodiments of the utility model.

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a right side view of fig. 1.

Fig. 3 is an enlarged schematic view of a portion a in fig. 1.

Fig. 4 is a schematic view of the grain dispersing assembly of the present invention.

FIG. 5 is a schematic view of the tube sheet construction of the present invention.

Fig. 6 is a schematic structural view of the discharge regulating assembly of the present invention.

Fig. 7 is a schematic structural view of the gravity gate of the present invention.

Fig. 8 is a side view of fig. 7.

The names of the components corresponding to the corresponding reference numerals in the drawings are: 1-a shell; 1.1-a first feed port; 1.2 air inlet; 1.3-air outlet; 1.4-observation window; 1.5-access door; 2-a feeder; 2.1-receiving hopper; 2.2-outlet; 2.3-a feeding part; 3.1-tube plate; 3.2-steel tube; 3.3-mounting holes; 4.1-adjusting plate; 4.2-adjusting the screw; 4.3-guide groove; 5.1-first slide carriage; 5.2-second slide carriage; 5.3-installing the shaft; 5.4-gravity gate; 5.5-a counterweight lever; 5.6-counterweight block; 5.7-bearings; f-sleeve.

Detailed Description

The following describes embodiments of the present invention in detail with reference to the drawings, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are provided, but the scope of the present invention is not limited to the following embodiments.

As shown in figures 1-3, the grain cleaning device of the utility model comprises

The grain-feeding device comprises a shell 1, wherein the shell 1 is a rectangular cylinder (of course, the shell can be of a columnar structure or other structures), a first feeding hole 1.1 is formed in the upper part of the shell 1, a discharging hole is formed in the lower part of the shell 1, and grains enter an inner cavity of the shell 1 from the top of the shell 1 and fall to the discharging hole below by virtue of gravity;

the grain feeder 2 is arranged at the upper part of the shell 1, the feeder 2 is a rotary dragon type discharger driven by a speed reduction motor and is provided with a material receiving part (namely a material receiving hopper 2.1), a feeding part 2.3 and a discharging part (namely an outlet 2.2), the outlet 2.2 is obliquely arranged and is communicated with the inner cavity of the shell 1, the material receiving hopper 2.1 is arranged inside the shell 1, one side wall of the material receiving hopper is obliquely arranged, grains enter the feeder 2 under the action of gravity and then enter the shell 1 through the obliquely arranged outlet 2.2, the grain feeding acceleration is reduced, the grain crushing probability is reduced, and the grain feeding quantity can be controlled;

the feeding adjusting assembly is arranged in the shell 1 opposite to the outlet of the feeder 2, and a second feeding hole with adjustable size is formed by the feeding adjusting assembly and the side wall of the shell 1 in a surrounding mode; when the grain impurity removing device works, the size of the second feed port can be adjusted through the feed adjusting assembly, the feed quantity of grains is effectively controlled, and the normal operation of the grain impurity removing work is ensured; and

the impurity removal system comprises an air supply assembly and an air exhaust assembly, wherein the air supply assembly is communicated with an air inlet 1.2 at the lower part of the shell 1, the air exhaust assembly is communicated with an air outlet 1.3 at the upper part of the shell 1, light impurities (such as dust, wheat bran and the like) are blown upwards by air provided by the air supply assembly, and the light impurities at the upper part of the shell 1 are extracted out by the air exhaust assembly.

As shown in fig. 1, the air outlet 1.3 is arranged on the other side wall of the casing 1 (i.e. the upper part of the left side wall of the casing 1) opposite to the feeder 2, the air suction component is a dust remover (i.e. a saxolone) with a fan, and the air suction port of the dust remover is fixedly connected to a connecting flange of the air outlet 1.3 of the casing 1 through a pipeline, so that the air suction component and the air outlet 1.3 are fixedly mounted; air intake 1.2 sets up on casing 1 of air outlet 1.3 below (the lower part that air intake 1.2 is located casing 1 promptly), and air supply subassembly (including air supply fan and connecting line) connecting line one end links firmly at the flange of air outlet 1.3, realizes being connected of air supply fan and casing 1. During operation, because the air inlet 1.2 is positioned at the lower part of the shell 1 and the air outlet 1.3 is positioned at the upper part of the shell 1, the air inside the shell 1 is blown from bottom to top, impurities are blown upwards in the falling process of grains, and the impurity removal is realized.

As shown in fig. 1 and fig. 4-5, a grain dispersing assembly is further disposed in the casing 1, the grain dispersing assembly is disposed in the casing 1 between the air outlet 1.3 and the feed outlet, and includes symmetrically disposed tube plates 3.1 and multiple layers of rotating members (i.e., steel tubes 3.2) horizontally disposed between the two tube plates 3.1 along the front and rear directions, the tube plates 3.1 are respectively disposed at the front and rear side walls of the casing 1 and are provided with multiple rows of mounting holes 3.3, and two ends of the steel tubes 3.2 are respectively inserted into a pair of mounting holes 3.3 opposite thereto; the adjacent two layers of steel pipes 3.2 are arranged in a staggered mode, so that grains are fully dispersed, the wind area of the grains is effectively guaranteed, light impurities in the grains are blown up to the maximum extent, and the impurity removal rate of the grains is improved; the steel pipe 3.2 rotates the setting, and grain can alleviate the impact between grain and the steel pipe 3.2 at the in-process that falls, reduces the percentage of damage of grain.

As shown in fig. 1-2, the feeding adjusting assembly comprises an adjusting plate 4.1 and an adjusting member which are arranged in the housing 1, the adjusting plate 4.1 is arranged obliquely, the upper part of the adjusting plate 4.1 is hinged on the other side wall of the housing 1 corresponding to the feeder 2 (namely, the left side wall of the housing 1), and the adjusting plate 4.1 extends obliquely from the left side wall of the housing 1 to the lower right to a position opposite to the outlet of the feeder 2; the adjusting part is an adjusting screw rod 4.2 (of course, the adjusting part can also be a linear power source such as an air cylinder, an electric push rod, a motor-driven lead screw or a lead screw stepping motor) which is horizontally arranged in the shell 1, a guide groove 4.3 which extends obliquely is arranged on one side surface of the adjusting plate 4.1, and a guide head at the end part of the adjusting screw rod 4.2 is inserted in the guide groove 4.3. When the adjusting screw rod 4.2 is rotated, the guide head of the adjusting screw rod 4.2 moves upwards or downwards along the guide groove 4.3, so that the size of the second feeding hole is adjusted.

As shown in fig. 6-8, the discharging adjusting component is arranged at the discharging opening, so that the falling acceleration of the grains can be buffered, the crushing probability of the grains is reduced, and the air loss can be reduced. Specifically, the discharge regulating assembly comprises

The first slide carriage 5.1 is obliquely arranged, and the top of the first slide carriage 5.1 is fixedly connected to the inner side of the left side wall of the shell 1;

the second slide carriage 5.2 is obliquely arranged, the top of the second slide carriage 5.2 is fixedly connected with the inner side surface of the right side wall of the shell 1, and the length of the first slide carriage 5.1 is less than that of the second slide carriage 5.2, so that the grains finally slide along the second slide carriage 5.2 and a gravity door 5.4 which is described later is opened;

the first slide carriage 5.1 and the second slide carriage 5.2 enclose a feed opening which is gradually contracted downwards, so that the buffer effect is achieved, and the air loss can be reduced due to the gradual contraction of the feed opening;

the connecting unit comprises a mounting shaft 5.3 which is rotatably arranged in the shell 1, and the mounting shaft 5.3 is horizontally arranged along the front-back direction; and the gravity door 5.4, the upper portion of the gravity door 5.4 is provided with a sleeve F, the sleeve F is sleeved on the mounting shaft 5.3 and is fixedly connected with the mounting shaft 5.3 through a bolt, the gravity door 5.4 has a first state and a second state, the gravity door 5.4 is in a vertical state by means of gravity in the first state, and the gravity and the acceleration of grains push the gravity door 5.4 open for discharging in the second state.

As shown in fig. 6, the discharging adjustment assembly further comprises a counterweight unit, the counterweight unit comprises a counterweight lever 5.5 horizontally arranged in the housing 1 along the left-right direction, and one end of the counterweight lever 5.5 is fixedly connected with a counterweight 5.6; the second slide carriage 5.2 is provided with a through hole corresponding to the counterweight lever 5.5, so that the other end part of the counterweight lever 5.5 smoothly passes through the second slide carriage 5.2; still be provided with bearing 5.7 on installation axle 5.3, bearing 5.7 links firmly together through bolt and counter weight lever 5.5, effectively guarantees the counter weight effect of balancing weight 5.6, improves the stability of gravity door 5.4.

As shown in fig. 1-2, the left side wall of the housing 1 below the air inlet 1.2, the right side wall of the housing 1 below the feeder 2, and the front side wall of the housing 1 corresponding to the second feed port are all provided with observation windows 1.4, so as to observe the internal condition of the housing 1 and grasp the working condition of the equipment in time; be provided with two access doors 1.5 on the casing 1 right side wall relative with air outlet 1.3, two access doors 1.5 highly be about 1.0m, not only be convenient for install steel pipe 3.2, still easy access.

In another embodiment of the utility model, the discharging adjusting assembly can be replaced by a discharger, and the discharger is used for controlling the discharging amount and reducing the air volume loss.

When the grain feeder works, grains enter the feeder 2 from the first feeding hole, the feeder 2 feeds the grains into the shell 1 through the second feeding hole, and the feeder 2 has a buffering effect, so that the acceleration of the grains can be effectively reduced, and the grains are prevented from being crushed; grain from feeder 2 free fall under the action of gravity, grain whereabouts in-process, scatters through the dispersion of steel pipe, and air supply assembly blows from bottom to top, upwards blows the light miscellaneous in the grain, and the light impurity on casing 1 upper portion is taken out to the negative pressure that convulsions subassembly provided, has realized the edulcoration of grain, and the edulcoration is efficient.

It is noted that, in the description of the present invention, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

In the description of the present invention, "upper", "lower", "left", "right", "front", and "rear", etc. are used only to indicate relative positional relationships, and when the absolute position of a described object is changed, the relative positional relationships may also be changed accordingly.

Finally, it should be emphasized that the above-described embodiments are merely preferred embodiments of the present invention, and not limitative of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and equivalents may be made to the embodiments described in the foregoing without inventive faculty, or that equivalents may be substituted for elements thereof. Therefore, any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A grain cleaning device is characterized by comprising

The upper part of the shell is provided with a first feeding hole;

the impurity removing system comprises an air supply assembly communicated with an air inlet at the lower part of the shell and an air draft assembly communicated with an air outlet at the upper part of the shell, wherein the light impurities are blown upwards by air provided by the air supply assembly, and the light impurities at the upper part of the shell are drawn out by the air outlet assembly.

2. The grain cleaning device of claim 1, wherein: the feeding adjusting assembly comprises an adjusting plate and an adjusting piece, the adjusting plate and the adjusting piece are arranged in the shell, the upper portion of the adjusting plate is hinged to one side wall of the shell, and the adjusting plate is obliquely arranged from the upper portion of the adjusting plate to the first feeding hole; one end of the adjusting piece is hinged to the lower portion of the adjusting plate, and the adjusting piece pushes the adjusting plate to rotate in the shell to adjust the size of the second feeding hole.

3. The grain cleaning device of claim 2, wherein: the adjusting piece is an adjusting screw rod, an air cylinder, a hydraulic cylinder or an electric push rod which are horizontally arranged in the shell.

4. The grain cleaning device of claim 1, wherein: the grain dispersing assembly is arranged in the shell and positioned below the feeding adjusting assembly, and comprises tube plates symmetrically arranged in the shell and a plurality of rows of rotating pieces horizontally arranged between the two tube plates.

5. The grain cleaning device of claim 1, wherein: and the bottom of the shell is provided with a discharging adjusting component or a discharger for adjusting grain discharging amount.

6. The grain cleaning device of claim 5, wherein: the discharging adjusting component comprises a first slide carriage, the first slide carriage is obliquely arranged, and the top of the first slide carriage is fixedly connected in the shell; the second slide carriage is obliquely arranged, the top of the second slide carriage is fixedly connected to the inner side of the shell, and the first slide carriage and the second slide carriage enclose a feeding hole which is gradually contracted downwards; and the gravity door is rotatably arranged at the feed opening through the connecting unit and used for adjusting the size of the feed opening.

7. The grain cleaning device of claim 6, wherein: the connecting unit comprises an installation shaft which is rotatably connected with the shell through a bearing, and the upper part of the gravity door is fixedly connected with one end part of the installation shaft.

8. The grain cleaning device of claim 7, wherein: the discharging adjusting component further comprises a counterweight unit, the counterweight unit comprises a counterweight lever and a counterweight block, the counterweight lever is horizontally arranged in the shell, the counterweight block is sleeved on the counterweight lever, and the bearing is fixedly connected to the counterweight lever.

9. The grain cleaning device of claim 1, wherein: the other side wall of the shell opposite to the feeder is provided with the air outlet, the air suction assembly is a dust remover with a fan, and the air suction opening of the dust remover is fixedly connected to the air outlet; the air inlet is arranged below the air outlet, and the air supply assembly is communicated with the air outlet.

10. The grain cleaning device of claim 1, wherein: at least one access door is arranged on the side wall of the shell, and at least one observation window is arranged on the side wall of the shell.